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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Pre-RAM driver for the SMSC LPC47M15X Super I/O chip */
#include <arch/romcc_io.h>
#include "lpc47m15x.h"
static inline void pnp_enter_conf_state(device_t dev)
{
unsigned port = dev>>8;
outb(0x55, port);
}
static void pnp_exit_conf_state(device_t dev)
{
unsigned port = dev>>8;
outb(0xaa, port);
}
static void lpc47b272_enable_serial(device_t dev, unsigned iobase)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
pnp_set_enable(dev, 1);
pnp_exit_conf_state(dev);
}
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